PCB-377A07
basic data | |||
Nominal diameter of microphone | 1/2 " | ||
application | free-field | ||
Sensitivity in the open circuit | 50 mV / PA | [2] | |
sensitivity in the open circuit (±1. 5 dB) | -26 dB in relation to 1 V / PA | [2] | |
Frequency range (± 1 dB) | 0.1 … 10,000 Hz | ||
(±2 dB) frequency range | 0.07 … 20,000 Hz | ||
lower limiting frequency (-3 dB) | 0.01 … 0.05 Hz | ||
Resonance frequency | 10,400 Hz | [1] | |
noise | 15 dB in relation to 20 µPa | [1] | |
noise | 14.5 dB(A) in relation to 20 µPa | [1] | |
range | > 145 dB in relation to 20 µPa | ||
microphone type in accordance with IEC 61094-4 | WS2F | ||
Conditions of use | |||
Temperature range (operation) | -40 … 248 ° F | -40 … 120 ° C | |
Temperature coefficient of sensitivity | 0,005 dB/°F | 0.009 dB / ° C | [2] [1] |
influence of static pressure | -0.01 dB/kPa | [2] [1] | |
Humidity coefficient of sensitivity | ±0, 001 dB/% RH | [2] | |
influence by axial vibration | 63 dB in relation to 20 µPa | [1 ] | |
Technical | |||
capacity | ≤2 pF | [1] | |
polarization voltage | 0 V | [3] | |
physical Properties | |||
housing material | stainless steel alloy | ||
pressure | back | ||
mounting thread (Preamplifier) | 0,4606 - 60 UNS | 11,7 mm - 60 UNS | |
mounting thread (cap) | 0,5 - 60 UNS | 12,7 mm - 60 UNS | |
size - Diameter (with cap) | 0.52 in | 13.2 mm | |
size - diameter (without protection cap) | 0.5 in | 12.7 mm | |
size - H reach (with Schutzkappe) | 0.64 in | 16.2 mm | |
size - height (without protection cap) | 0.6 in | 15.3 mm | |
mass | 0.28 oz | 7.8 grams | [1] |
Notes | |||
[1] | typically | ||
[2] | based on 250 Hz | ||
[3] | Prepolarized | ||
Accessories | |||
ACS-20 | Calibration of a precision capacitor microphone | -1 |